Modular storage unit



FIG. 1 is a front perspective view of a modular storage unit showing my design.

FIG. 2 is an enlarged perspective view showing the portion of the modular storage unit encircled by broken line in FIG. 1.

The side and back of the modular storage unit not shown in the drawing have the same plain appearance as the top and side of the modular storage unit shown in the drawing, with separation lines between the components corresponding to those shown in the drawing. 

The ornamental design for a modular storage unit, as shown and described. 